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Finding the Fourth Proportional to 529,063.45, 729,610.23 and 408,013.00

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Solution

The fourth proportional to 529,063.45, 729,610.23 and 408,013.00 is: 562,674.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,063.45 : 729,610.23 = 408,013.00 : x
  2. Step 2: Convert to fraction form
    529,063.45/729,610.23 = 408,013.00/x
  3. Step 3: Cross multiply
    529,063.45x = 729,610.23 × 408,013.00
  4. Step 4: Simplify right side
    529,063.45x = 297,690,458,479.01
  5. Step 5: Solve for x
    x = 297,690,458,479.01/529,063.45
  6. Step 6: Final answer
    x = 562,674.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.